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An interview with Dave White, a water expert at Arizona State University, about what a breakthrough along the Colorado River really means
Arizona, California, and Nevada announced a deal on Monday to reduce the amount of Colorado River water they use, ahead of a bigger overhaul planned for 2026. The agreement is crucial, likely keeping the river from reaching dangerously low levels that would have put water supplies for major cities and agricultural regions at risk. But Colorado River water policy is often knotty and confusing, and it can be difficult to wrap one’s head around just what kind of impact deals like this can have.
To that end, I called up Dave White, the director of the Global Institute of Sustainability and Innovation at Arizona State University and chair of the City of Phoenix’s Water/Wastewater Rate Advisory Committee. He explained how things work now, what the deal means, and how he’d like to see things change in the future — particularly in 2026, when the current set of water allocation rules expire and are replaced. Our conversation has been edited for length and clarity.
There are more than 100 years of law policy agreements, which we collectively call the law of the river. But the most relevant is an agreement called the 2007 Interim Operating Guidelines for the Coordinated Operations of Lake Powell and Lake Mead. That’s the long name, but we typically call it the 2007 agreement.
That agreement created a set of rules that, as the name indicates, helped to guide the operations of Lake Powell and Lake Mead. And along with subsequent agreements, particularly the drought contingency plans in 2019, it has guided the management of the reservoir system on the Colorado River and set forth the allocations managing the flow to the lower basin states.
Right now we’re in the time period between when the interim guidelines were established in 2007, updated with drought contingency plans in 2019, and when we’ll hit a deadline for a new set of operating guidelines in 2026. And so all of this is trying to manage the risk from the reduced water supply on the Colorado River and to help reestablish a balance in the supply-demand equation of water in an era of megadrought, climate change, and high agricultural demand and increasing municipal demand.
The first thing that’s important for folks to realize is that this is a proposal. What was announced was essentially an agreement among the lower basin states — California, Nevada and Arizona — to propose a plan to reduce demand in those states. It will need to go through additional steps to identify more specifics, and then this proposal ultimately will need to be adopted by the seven affected states and then endorsed by the Bureau of Reclamation.
What the proposal does is lay out a framework to reduce water demand in the lower basin by about 3 million acre feet. And for context, one acre foot is about 325,000 gallons of water, or the amount of water used by two to four homes in the western United States per year. That reduction would be taken across multiple sectors: agriculture, tribal communities, and some municipal or urban users, most notably the Metropolitan Water District of California, which is the Los Angeles area.
The idea is to reduce demand through voluntary conservation. And then part of the package is compensation for some of that voluntary conservation in the form of funding from the federal government through the Inflation Reduction Act to the tune of about $1.2 billion. That is an absolutely critical part of the of the story: the Inflation Reduction Act has really enabled this breakthrough, because of the federal funding for those voluntary conservation measures.
Another critical part of the story was that recently the Bureau of Reclamation released what’s called a draft environmental impact statement, and it presented a couple of alternatives to the states for consideration. Those proposals gave us kind of a federal government’s perspective on the framework moving forward. It was essentially a classic negotiating tactic, where the Bureau of Reclamation said, “look, you states have yet to reach a consensus agreement, so we’re going to lay out a plan,” and, as is often the case, everybody was unhappy with parts of that plan.
That helped to stimulate additional negotiations and bring California, in particular, more to the table. So it’s a very important moment in time because it represents a turning point in multi-year negotiations between the states. Importantly, it lays out a path forward for a consensus agreement that is driven by the states as opposed to being imposed upon them by the federal government. So, we’re talking about a breakthrough in negotiations that led to a three-state proposal.
Well, that’s what we’re waiting to see. We don’t have all of those details yet.
Legally, the Bureau of Reclamation needs to go through this process, weigh the different alternatives, evaluate it, identify what they would call a preferred alternative, and then ultimately make a determination. But the Bureau of Reclamation has certainly indicated there’s initial support for this proposal and that the funding would be made available.
We don’t know who specifically would receive how much of that funding but we do know that it will be agriculturalists (essentially farmers and ranchers), some municipalities such as the Metropolitan Water District of California, and some Native American communities.
We are still engaged in what I would call incremental adaptation. This is adapting to the rapidly changing conditions that are presented by this 22-year-long drought, the so-called megadrought in the region. We are also adapting to the impacts of climate change. If you go back, you know, the 2007 agreement was an incremental update to deal with a very significant risk of shortage on the Colorado River system in 2000 to 2005. We had the drought contingency planning process in 2019 that was another incremental adaptation at that time that was meant to get us to 2026, when the current guidelines expire. Environmental conditions continue to rapidly change, while the demand side continues to stay high. And while we’ve made a number of efficiency gains and voluntary reductions, the river is simply over-allocated for the flow that we have seen, especially since the turn of the millennium.
So we’ve been engaging in a series of incremental adaptations. Now, there’s nothing wrong with that. That’s a very smart strategy as you move along, right? You’re incrementally adapting your policy to reflect the changing environmental and social conditions. This is another important incremental adaptation that will hopefully allow us to keep working towards the 2026 guidelines.
What I and many others argue is that we need a more transformative adaptation, we need a more significant restructuring. Now, it’s difficult to do that right now in the midst of a very short-term risk. But eventually, between now and 2026, we need to address some of the structural imbalance, or deficit, in the river. We have over-allocated the river in this era of increasing drought and climate change.
We’ve got to restructure the demand over the course of the next several years, and that’s going to require more transformational kinds of changes. But I also want to point out that’s not limited to reducing demand, right? You can do that through dramatic increases in efficiency. We can produce the same units of product, whether that be food or microchips or homes or businesses, with significantly less water.
The most effective strategy is efficiency. It’s the cheapest. It does not require significantly new infrastructure or new water augmentation. And there are lots of good stories out there, in creating more efficiencies and creating more flexible policies and more adaptability within the way that we manage water. We’ve got to sort of wring every cool new approach we can out of the system.
One that I think is really important is that the city of Phoenix and several of its regional partners in central Arizona are in the planning stages of moving towards an advanced water-purification process. What that means is it would allow the cities to pool their wastewater resources, their effluent, and then be able to treat that water through advanced water purification so we can reuse that water for municipal use. We call that direct, potable reuse of the water.
Central Arizona is incredibly efficient, we reuse about 90% of all the wastewater that we produce in the central Arizona region for power production, for urban irrigation, for agriculture, etc. But we can actually reuse that water to support households and businesses. We can then use that water again. Some of it is consumed by people, but basically cycling the water through the city as many times as possible reduces the need for new raw water.
So the current proposal that’s in the process of being developed by the City of Phoenix Water Services Department is for advanced water purification that, according to the current estimates, would produce about 60,000 gallons of water a day for City of Phoenix residents from wastewater. And so, that’s one way we can be much more efficient in recycling and reusing our water.
I do think it gets to the need for greater public understanding and then, you know, individual and collective action. In single family residential households, for example, 50% or more, on average, of the water use is outside the home for things like residential landscaping and swimming pools. In the Phoenix area, we’ve seen a really significant trend in reducing water demand inside single family homes, thanks to technologies like low water-use toilets and more efficient washing machines and dishwashers and so on. The next frontier is getting more progressive with the way we manage residential landscaping water. And that's something that every individual household can do.
The Southern Nevada Water Authority, the Las Vegas Regional Authority, has been really at the forefront of these kinds of strategies with turf buyback programs, incentivizing homeowners, and creating all sorts of both incentives and policies to reduce that outdoor residential demand. And that’s something where individual households can be empowered.
No, I really don’t. It’s about a sort of risk management in the short term, and then crafting new policy approaches and new management strategies over the long term. So I don’t think these get in the way of each other. The 2019 agreement essentially bought us some time, and this round of proposals and anticipated agreements will continue to buy us some time.
Do I think we need more adaptation, and more significant changes? Absolutely. But I would never criticize these incremental plans, because they’re absolutely necessary to manage short-term risk.
Without these actions, there was a plausible scenario where levels in the reservoirs could drop below the minimum power pool, meaning we wouldn’t be able to create power out of the Hoover Dam. In [the Bureau of Reclamation’s] 24-month studies, we began to see scenarios in which the lake levels dropped below the intakes, meaning we wouldn’t be able to deliver Colorado River water whatsoever to the states.
When you start to see these highly undesirable scenarios where you lose the ability to produce power, you potentially even lose the ability to deliver any water at all from the Colorado system to Arizona, California, or Nevada, you know you’ve got to act and engage in short-term risk management.
The risk that we’ve always seen is that you get some relief from the kind of very strong winter precipitation in the Rocky Mountains and in California that we had this year. But as a colleague says, we cannot let one good winter take the pressure off. I never want to root against good news, and the winter precipitation and the new proposal and potential agreements are good news. But you got to keep the pressure on and keep the emphasis on the long-term strategies.
[Laughs] Yes.
Well, I think you can look at it both ways. Yes, there was the intention that the 2019 plans would get us to 2026. Turns out the 2019 plans got us through 2022. That’s just the reality we’re in. Do I wish the 2019 plans would have gotten us to 2026? Yes. But without the 2019 plans, we would have been at risk of minimum power pool levels even earlier.
I was hopeful the 2007 plans would get us to 2026. But the reality is that the climate is changing, the drought has just been incredibly persistent. I mean, we now know from looking at reconstructions of the past climate that this 22-year period is the driest period in our region in the last 800 years for certain, and very likely in the last 1,200 years. That’s an exceptional period of drought. And so, by some measures, you know, it’s pretty remarkable what the water management community has done to manage the risk without significant disruption to the region. So in some ways, it’s a success story.
The single most important thing everyone recognizes is that we really need to chart a new path forward for agriculture. Particularly for agriculture in the lower basin, and even more specifically for non-food forage crops in the lower basin.
We still use two-thirds or more of our water in the lower basin for agriculture, and most of that is used for forage crops, like alfalfa, which feed livestock. So we very much need to restructure the agricultural sector in the lower basin and think about prioritization of certain types of agriculture in certain locations. And importantly, we need to work with agricultural communities, with landowners and businesses, to help them transition to a future that recognizes there’s less water available. And, you know, this is the challenge that we face: How do we make an intentional, thoughtful, supportive transition to a new, more efficient, and more appropriate type of agriculture in the West?
This region is in an amazing region to grow alfalfa if you have water. And so, there’s lots of rational choices that were made along the way. But in an era of significantly reduced water availability, it is simply not sustainable for us to continue to use that much of our available water for agriculture, and in particular for forage crops mostly to support cattle. And so this has to change.
I fully recognize, though, that these are private property rights, and there needs to be a process for this. We can’t just simply have a situation like what we saw in the Midwest where we just move all of our manufacturing overseas and abandon entire swaths of the country. We have to think about how we can help, whether it’s through compensation, community planning, capacity building, job transitions, etc. But that’s the biggest part of the solution. We need to be very thoughtful about that.
I think one of the key things we really need to get into the planning process [for 2026] is greater adaptability and greater flexibility so we’re able to respond to changing conditions. Under the current guidelines there is a priority rights process where we would have [hypothetically] seen the reduction of essentially all — 100% — of Arizona’s allocation of the Colorado River, before any of California’s rights were reduced. But it seems implausible to eliminate the Colorado River water supply to Phoenix, which is the fifth largest city in the country. These are the third rails of water politics. We have to rethink the way that these water allocation decisions are made, and we’ve got to be much more flexible, much more adaptable, and really think about how we can respond to climate and water conditions.
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On Neil Jacobs’ confirmation hearing, OBBBA costs, and Saudi Aramco
Current conditions: Temperatures are climbing toward 100 degrees Fahrenheit in central and eastern Texas, complicating recovery efforts after the floods • More than 10,000 people have been evacuated in southwestern China due to flooding from the remnants of Typhoon Danas • Mebane, North Carolina, has less than two days of drinking water left after its water treatment plant sustained damage from Tropical Storm Chantal.
Neil Jacobs, President Trump’s nominee to head the National Oceanic and Atmospheric Administration, fielded questions from the Senate Commerce, Science, and Transportation Committee on Wednesday about how to prevent future catastrophes like the Texas floods, Politico reports. “If confirmed, I want to ensure that staffing weather service offices is a top priority,” Jacobs said, even as the administration has cut more than 2,000 staff positions this year. Jacobs also told senators that he supports the president’s 2026 budget, which would further cut $2.2 billion from NOAA, including funding for the maintenance of weather models that accurately forecast the Texas storms. During the hearing, Jacobs acknowledged that humans have an “influence” on the climate, and said he’d direct NOAA to embrace “new technologies” and partner with industry “to advance global observing systems.”
Jacobs previously served as the acting NOAA administrator from 2019 through the end of Trump’s first term, and is perhaps best remembered for his role in the “Sharpiegate” press conference, in which he modified a map of Hurricane Dorian’s storm track to match Trump’s mistaken claim that it would hit southern Alabama. The NOAA Science Council subsequently investigated Jacobs and found he had violated the organization’s scientific integrity policy.
The Republican budget reconciliation bill could increase household energy costs by $170 per year by 2035 and $353 per year by 2040, according to a new analysis by Evergreen Action, a climate policy group. “Biden-era provisions, now cut by the GOP spending plan, were making it more affordable for families to install solar panels to lower utility bills,” the report found. The law also cut building energy efficiency credits that had helped Americans reduce their bills by an estimated $1,250 per year. Instead, the One Big Beautiful Bill Act will increase wholesale electricity prices almost 75% by 2035, as well as eliminate 760,000 jobs by the end of the decade. Separately, an analysis by the nonpartisan think tank Center for American Progress found that the OBBBA could increase average electricity costs by $110 per household as soon as next year, and up to $200 annually in some states.
EIA
Saudi Arabia’s state-owned oil company Saudi Aramco is in talks with Commonwealth LNG in Louisiana to buy liquified natural gas, Reuters reports. The discussion is reportedly for 2 million tons per year of the facility’s 9.4 million-ton annual export capacity, which would help “cement Aramco’s push into the global LNG market as it accelerates efforts to diversify beyond crude oil exports” and be the “strongest signal yet that Aramco intends to take a material position in the U.S. LNG sector,” OilPrice.com notes. LNG demand is expected to grow 50% globally by 2030, but as my colleague Emily Pontecorvo has reported, President Trump’s tariffs could make it harder for LNG projects still in early development, like Commonwealth, to succeed. “For the moment, U.S. LNG is still interesting,” Anne-Sophie Corbeau, a research scholar focused on natural gas at Columbia University’s Center on Global Energy Policy, told Emily. “But if costs increase too much, maybe people will start to wonder.”
Ford confirmed this week that its $3 billion electric vehicle battery plant in Michigan will still qualify for federal tax credits due to eleventh-hour tweaks to the bill’s language, The New York Times reports. Though Ford had said it would build its factory regardless of what happened to the credits, the company’s executive chairman had previously called them “crucial” to the construction of the facility and the employment of the 1,700 people expected to work there. Ford’s battery plant is located in Michigan’s Calhoun County, which Trump won by a margin of 56%. The last-minute tweaks to save the credits to the benefit of Ford “suggest that at least some Republican lawmakers were aware that cuts in the bill would strike their constituents the hardest,” the Times writes.
Italy and Spain are on track to shutter their last remaining mainland coal power plants in the next several months, marking “a major milestone in Europe’s transition to a predominantly renewables-based power system by 2035,” Beyond Fossil Fuels reported Wednesday. To date, 15 European countries now have coal-free grids following Ireland’s move away from coal in 2025.
Italy is set to complete its transition from coal by the end of the summer with the closure of its last two plants, in keeping with the government’s 2017 phase-out target of 2025. Two coal plants in Sardinia will remain operational until 2028 due to complications with an undersea grid connection cable. In Spain, the nation’s largest coal plant will be entirely converted to fossil gas by the end of the year, while two smaller plants are also on track to shut down in the immediate future. Once they do, Spain’s only coal-power plant will be in the Balearic Islands, with an expected phase-out date of 2030.
“Climate change makes this a battle with a ratchet. There are some things you just can’t come back from. The ratchet has clicked, and there is no return. So it is urgent — it is time for us all to wake up and fight.” — Senator Sheldon Whitehouse of Rhode Island in his 300th climate speech on the Senate floor Wednesday night.
Some of the Loan Programs Office’s signature programs are hollowed-out shells.
With a stroke of President Trump’s Sharpie, the One Big Beautiful Bill Act is now law, stripping the Department of Energy’s Loan Programs Office of much of its lending power. The law rescinds unobligated credit subsidies for a number of the office’s key programs, including portions of the $3.6 billion allocated to the Loan Guarantee Program, $5 billion for the Energy Infrastructure Reinvestment Program, $3 billion for the Advanced Technology Vehicle Manufacturing Program, and $75 million for the Tribal Energy Loan Guarantee Program.
Just three years ago, the Inflation Reduction Act supercharged LPO, originally established in 2005 to help stand up innovative new clean energy technologies that weren’t yet considered bankable for the private sector, expanding its lending authority to roughly $400 billion. While OBBBA leaves much of the office’s theoretical lending authority intact, eliminating credit subsidies means that it no longer really has the tools to make use of those dollars.
Credit subsidies represent the expected cost to the government of providing a loan or a loan guarantee — including the possibility of a default — and thus how much money Congress must set aside to cover these potential losses. So by axing these subsidies, Congress is effectively limiting the amount of lending that the LPO can undertake, given that many third-party lenders would be reluctant to finance riskier, more novel, or larger projects in the absence of federal credit support.
“The LPO is statutorily allowed to take loans on its books to finance these projects in these categories, but it has no credit subsidy by which to take the risk required to do so,” Advait Arun, senior associate of energy finance at the Center for Public Enterprise and a Heatmap contributor, told me.
The particular programs that have been eliminated support new and improved energy technologies, clean energy infrastructure, fuel efficient vehicles, and help native communities access energy project financing. The long-running Loan Guarantee Program and the advanced vehicles program in particular are behind some of the best known LPO efforts, supporting companies such as Tesla, Ford, and NextEra Energy, and projects such as Georgia’s Vogtle nuclear reactors, the Thacker Pass lithium mine, and Shepherd’s Flat, one of the world’s largest wind farms.
The Loan Guarantees Program is “the big Kahuna,” Arun told me. “This is the longest-standing program of the LPO. So to see this defunded is like, you’re decapitating the LPO’s crown jewel.”
The program only has about $11 million left over in credit subsidies, consisting of funding that it received prior to the IRA’s appropriations. That won’t be enough to make any meaningful loans, Arun said, and is more likely to be used to “keep a skeleton crew online” for any remaining administrative tasks.
Then there’s the Energy Infrastructure Reinvestment Program, which the IRA stood up with a whopping $250 billion in lending authority to transition and transform existing fossil fuel infrastructure for clean energy purposes. Now, OBBBA has axed the program’s remaining $5 billion in credit subsidies and replaced it with $1 billion in new subsidies for projects that “retool, repower, repurpose, or replace” existing energy infrastructure, with a focus on expanding capacity and output as opposed to decarbonizing the economy. It also refashioned the program as the predictably-named “Energy Dominance Financing” initiative.
The new-old program — which the law extended through 2028 — no longer requires LPO-funded infrastructure to reduce or sequester emissions, broadening the office’s lending authority to include support for fossil fuel and critical minerals projects. It also adds language encouraging the LPO to “support or enable the provision of known or forecastable electric supply,” which Arun fears is a “backend way of penalizing the addition of renewable energy” on previously developed land.
“Under the Trump administration’s direction, [the LPO] can use that term, ‘known and forecastable,’ to actually just say, well, guess what? Renewables are not known or forecastable because they are intermittent due to the weather,” Arun told me. So while government and private industry were once excited about, say, turning sites originally developed for coal mining or coal ash disposal into solar and battery facilities, those days are probably over.
Carbon capture in particular stands to suffer from this reprogramming, Arun said, explaining that while the Biden LPO saw potential in adding carbon capture to natural gas and coal plants, its current incarnation will no longer allocate funding in any meaningful amount “because reducing emissions is no longer part of the LPO’s mandate.” Some policymakers and clean energy developers had also hoped that excess renewable energy would make it economically feasible to power the production of hydrogen fuel with renewable energy. But with this law — and really each passing day under Trump — a mass buildout of solar and wind seems less and less likely, making it doubtful that green hydrogen will move down the cost curve.
As bleak as this looks, it’s better than it could have been. There was no guarantee that Trump would keep the LPO around at all. Even in this denuded state, the office can still fund the expansion of existing nuclear projects, and perhaps even the buildout of transmission lines or battery projects on brownfield sites, Arun said, depending on how LPO’s leadership ends up interpreting what it means to “increase the capacity output of operating infrastructure.”
But in many ways, what happened with the LPO looks like another instance of the Trump administration picking winners and losers: Yes to clean, firm energy and fossil fuels, no to solar, wind, and electric vehicles.
Take the Advanced Technology Vehicle Manufacturing Program, for example. OBBBA nixed both its credit subsidies and its tens of billions of dollars in lending authority. That’s hardly a surprise, given that the Bush administration created the program in 2007 explicitly to support the domestic development and manufacture of fuel-efficient vehicles and components. But it means that unlike the LPO programs for which lending authority still stands, even if Congress wanted to, it could not redesign the advanced vehicles program to serve a more Trump-aligned purpose. Safer, I suppose, to cut off any opening for funding EVs and hybrids.
The latest LPO rescissions add to the growing list of reasons the private sector has to be wary of the consistently inconsistent landscape for federal funding, Arun told me. He worries that slashing the LPO’s authority at the same time as there’s so much uncertainty around tax credit eligibility will lead some companies to forgo federal funding opportunities altogether.
“We’ll see if private developers even want to play around with the LPO,” Arun told me, “given the uncertainty around the rest of the federal landscape here.”
Electric vehicle batteries are more efficient at lower speeds — which, with electricity prices rising, could make us finally slow down.
The contours of a 30-year-old TV commercial linger in my head. The spot, whose production value matched that of local access programming, aired on the Armed Forces Network in the 1990s when the Air Force had stationed my father overseas. In the lo-fi video, two identical military green vehicles are given the same amount of fuel and the same course to drive. The truck traveling 10 miles per hour faster takes the lead, then sputters to a stop when it runs out of gas. The slower one eventually zips by, a mechanical tortoise triumphant over the hare. The message was clear: slow down and save energy.
That a car uses a lot more energy to go fast is nothing new. Anyone who remembers the 55 miles per hour national speed limit of the 1970s and 80s put in place to counter oil shortages knows this logic all too well. But in the time of electric vehicles, when driving too fast slashes a car’s range and burns through increasingly expensive electricity, the speed penalty is front and center again. And maybe that’s not a bad thing.
You certainly can notice the cost of lead-footedness in a gasoline-powered car. It’s simpler today, when lots of vehicles have digital displays that show the miles per gallon you’re getting, than in the old days when you had to do the math yourself. An EV puts the hard efficiency math right in front of you. Battery life is often displayed in terms of estimated miles of range remaining, and those miles evaporate before your eyes if you climb a mountain or accelerate like a drag racer.
This is no academic concern, like trying to boost one’s fuel efficiency through hypermiling techniques such as gentle acceleration, downhill coasting, and killing the AC. In six years of owning a Tesla Model 3, I’ve pushed its range limits trying to reach far-flung national parks and other destinations where fast chargers are scarce. I’ve found myself in numerous situations where I’ve set the cruise control at exactly the speed limit or slightly below to make sure the car would reach the one and only charging depot in the vicinity. For particularly close calls, I’ve puttered white-knuckled with one eye on Tesla’s in-car energy app — and felt my stomach drop when I found myself underperforming its expectations.
Fortunately, slow works. Three years ago I managed a comfortable round-trip from what was then the closest Tesla Supercharger to Crater Lake National Park by driving there down a 55-mile-per-hour two-lane highway; at freeway speed, my little battery probably wouldn’t have made it. Today, my fully charged Model 3 might make it something like 130 to 140 miles at interstate speed, depending on elevation. Go a little slower and it comes close to matching the 200 miles of supposed range.
Fear is the speed-killer, sure. The chance of being stranded with a dead battery is enough for any driver to be scared straight into observing the posted limit. But having all that data at the ready had already started to affect my driving habits even when there was no danger of stranding myself. It’s hard to watch the range drop when you slam the accelerator without thinking of the Interstellar meme about how much this little maneuver is going to cost us. With the price of electricity at the fast charger rising, I’m much more conscious of wasting a few kilowatt-hours by being in a hurry.
The difference is stunningly clear in the kind of controlled range tests that car sites and EV influencers have been conducting. For example, the State of Charge YouTube channel recently drove the Cadillac Escalade IQ, the fully electric version of the status SUV that is officially rated at 465 miles of range. Driven at exactly 70 miles per hour until it ran out of juice, the big EV exceeded that estimate by traveling 481 miles. With the speedometer held at 60 miles per hour, however, the vehicle went 607 miles — more than 100 miles more.
Granted, the Caddy’s comically large 205 kilowatt-hour battery — more than three times as big as the one in my little Tesla — does the lion’s share of the work in allowing it to go so very many miles. A peek into State of Charge’s data, though, makes it clear what 10 miles per hour can do. Dropping from 70 miles per hour to 60 caused the car’s miles per kilowatt-hour figure to rise from 2.1 to 2.6 or 2.7.
That’s not to say EV ownership turns every driver into an energy-obsessed hypermiler. One blessing of the huge batteries that go into Cadillac EVs and Rivians is freeing their drivers from some of the mental burden of range calculations. With driving ranges reaching well above 300 miles, you’re going to make it to the next plug even if you drive like a maniac.
Even so, the increased awareness of the cost of electricity might make some of us reconsider the casual speeding we all do just to take a few minutes off the trip. That’s a good thing for public safety: Big EV batteries make these vehicles heavier than other cars, on average, and thus potentially more dangerous in auto accidents. And slowing down will be especially relevant as electricity prices outpace inflation. Consumer electricity prices are up nearly 5% over last year and are poised to get worse: The budget reconciliation bill signed by President Trump last week won’t help, as one projection sees it leading to an increase in annual energy bills of up to $290 by 2035.
To be honest, the biggest problem of slowing down a little isn’t really the extra time it takes to get someplace. It’s trying to conserve in a world where 5 to 10 miles per hour over the speed limit is the expectation. I once had to cross 140 miles of wind-swept New Mexico expanse from Albuquerque to Gallup on a single charge, a task that required driving 55 miles per hour in a 65 zone of the interstate, holding on tight as semi trucks flew past me in revved aggravation. We made it. But if you really want to make your electrons go farther, then be prepared to become the target of road rage by the hasty and the aggrieved.